Spectrum Analyzer Mode Key Descriptions

Spectrum Analyzer Mode Functions

ANALOG+ ON OFF

turns on the analog+ display mode. This is a digital implementation of an analog display, combining the advantages of both types of displays. The display is made up of 401 horizontal points or trace elements. In the analog+ display mode each trace element can display from 1 to 40 dots, or measurements.

Pressing ANALOG+ ON OFF makes dot density the active function. The dot density function sets the desired number of measurements per trace element. Each dot requires

an additional analog-to-digital conversion for each trace element, so the sweep time can limit the actual number of dots available. Lengthening the sweep time can increase the actual dot density.

Markers and marker functions as well as the screen text and title capabilities of a digital display are available along with the analog type trace information. Some functions are not available with analog + display mode. See Table 6- 1 for a list of functions that are not available with analog+ displays. If a trace is blanked while using an analog+ display, the data is permanently blanked and cannot be recalled, even if you use the view function.

The copy function can be used to provide a printout of the display. It must be configured to use a printer and not a plotter. After using other functions, press ANALOG+ ON OFF to return to the dot density function.

Limit lines can be used to test data in an analog+ display, but they cannot be displayed.

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